This would lead to IDs being globally unique, which means if you have a common name you are unlikely to get a handle that you want. Secure scuttlebutt has a met

This would lead to IDs being globally unique, which means if you have a common name you are unlikely to get a handle that you want. Secure scuttlebutt has a method to allow multiple people to share the same "public id" (multiple people may be named "Jill" for example) but preserves uniqueness by addressing individuals by a public key associated with their public name. I'm not sure how the mapping from public key to handle is done though.